Doppler/Angle Coupling and Rejection for Slow-Time Phase Codes in MIMO Radar

In this article, we consider the problem of the Doppler/angle coupling induced by Slow-Time Phase codes in MIMO Radar. We show that such a coupling must be carefully taken into account when clutter rejection is performed for a given Doppler frequency. After studying the simple non-realistic case of one single point-like scatterer and deriving the projector to be used to properly perform the rejection in the Doppler/angle domain, we extend the study to a clutter spread over a continuous angular interval. Simulation results show the efficiency of the proposed approach.